Ceiling Suspension Assembly Threaded Mounting
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Solution Overview
Problem
Existing ceiling fittings and covers face challenges in maintaining a tight engagement with the ceiling, often relying on unreliable cord attachments, which can lead to sliding and require tools for mounting or dismounting, posing safety and damage risks, especially when dealing with sloping ceilings or objects without cables.
Innovation Solution
A ceiling suspension assembly featuring a ceiling fitting and suspension device with cooperating threadings that allow for secure attachment to a hook or ring, allowing the weight of the fitting to be taken by the hook rather than the cord, enabling easy mounting and dismounting without tools and accommodating varying ceiling angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing ceiling fittings rely on cord attachment for positioning, then the fitting can be mounted without ceiling anchors, but the fitting tends to slide downwards and cannot maintain tight engagement with the ceiling
Solution Approach 1:
The patent introduces a suspension device as an intermediary component between the ceiling hook and the ceiling fitting. This suspension device includes a suspension element that can be independently attached to the ceiling hook, serving as a mediator that separates the anchoring function from the fitting body, thereby enabling reliable ceiling engagement without requiring the fitting itself to be anchored to the ceiling surface.
Solution Approach 2:
The patent divides the ceiling suspension system into separate functional components: a ceiling hook, a suspension device with suspension element, and a ceiling fitting. This segmentation allows each component to perform its specific function independently - the suspension element handles anchoring to the ceiling, while the fitting body handles the appliance attachment, resolving the contradiction between easy mounting and reliable engagement.
2Reliability
If fixed ceiling anchorage is accomplished by screws or plugs penetrating into the ceiling, then tight engagement is achieved, but it is difficult and unsafe to mount or dismount without causing damage to the ceiling or cord
Solution Approach 1:
The suspension element acts as an intermediary that bears the anchoring load independently. It connects to the ceiling hook through a reliable mechanism while allowing the ceiling fitting to be freely attached and detached. This mediator approach enables tight engagement without requiring invasive ceiling anchors, making mounting and dismounting safe and damage-free.
Solution Approach 2:
The patent extracts the anchoring function from the ceiling fitting body and places it in the suspension element. By taking out the anchoring requirement from the fitting itself, the system achieves tight engagement through the suspension element's connection to the ceiling hook, while the fitting remains easily removable without causing damage to the ceiling or cord.
3Device complexity
If the ceiling fitting weight is supported by the cord, then simple suspension is achieved, but the cord bears unnecessary load and the fitting cannot maintain proper position
Solution Approach 1:
The suspension element serves as a mediator that assumes the load-bearing function. It connects the ceiling hook to the ceiling fitting, transferring the fitting's weight to the ceiling anchor rather than the cord. This intermediary structure maintains simplicity while ensuring the cord only transmits the appliance weight, not the fitting weight, thereby stabilizing the fitting position.
Solution Approach 2:
The system segments the load paths: the suspension element carries the fitting weight to the ceiling hook, while the cord carries only the appliance weight from the fitting to the power source. This segmentation of functions and loads achieves both structural simplicity and reliable position stability.
4Device complexity
If the ceiling fitting is directly attached to the ceiling hook, then the structure is simple, but it does not allow for variable suspension length or easy repositioning
Solution Approach 1:
The suspension element introduces dynamic adjustability to the system. It can be positioned at different lengths along the cord and allows the ceiling fitting to be moved to various positions. This dynamic component enables variable suspension length and easy repositioning while maintaining a relatively simple overall structure, resolving the contradiction between simplicity and adaptability.
Data Source
AI summary
A ceiling suspension assembly for suspending an object in a cable, cord or string (51) from a ceiling includes a ceiling fitting, cover or casing (25) and a suspension device (1). The suspension device is adapted to be attached to the ceiling such as fastened to a hook, ring or shackle. The suspension device and the ceiling fitting, cover or casing have cooperating threadings which allow them to be screwed to each other and thereby take varying vertical positions in relation to each other. The suspension device can includes a projecting elongated portion that extends downwards, has an axial channel for receiving the cable, cord or string and an exterior threading. The ceiling fitting, cover or casing can includes a portion having a through-hole with an interior threading for cooperation with the exterior threading of the projecting elongated portion to give the ceiling fitting, cover or casing a desired position such as being in tight engagement with the ceiling. The ceiling cover, casing or fitting can be composed of two separate parts, one (33) of which has at its bottom a large aperture (37) in which a connector plug (53) can be introduced and the other part (35′, 35″) can be divided along an axial plane.